More than one non-numeric character in a vector component causes RuntimeError: unreachable

[MATOO]

Obsidian version: v1.5.12
Obsidian-wypst version: 0.0.3

Vectors that contain more than one non-numeric character in any component cause a "RuntimeError: unreachable"

Vectors that contain purely digits are fine, e.g. vec(111,222)
Vectors that contain single non-numeric characters per component also work fine, e.g. vec(n,k)

The problem arises when there are multiple such characters in a component (or a digit + non-numeric).
Examples:

• vec(2, 2x)
• vec(2, 2-1)
• vec(2, n-k)
• vec(2, [n])
• vec(2, n!)

All result in "Runtime Error: Unreachable"

However, something like

• vec(2, n_2)
• dots.v

does not cause the error